Premium
Metal‐Catalyzed “On‐Demand” Production of Carbonyl Sulfide from Carbon Monoxide and Elemental Sulfur
Author(s) -
Farrell Wesley S.,
Zavalij Peter Y.,
Sita Lawrence R.
Publication year - 2015
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201410353
Subject(s) - chemistry , catalysis , carbon monoxide , carbonyl sulfide , molybdenum , sulfur , cyclopentadienyl complex , reagent , transition metal , sulfide , amine gas treating , carbon fibers , catalytic cycle , metal , inorganic chemistry , organic chemistry , materials science , composite number , composite material
The group 6 molybdenum(II) cyclopentadienyl amidinate (CPAM) bis(carbonyl) complex [Cp*Mo{N(iPr)C(Ph)N(iPr)}(CO) 2 ] (Cp*=η 5 ‐C 5 Me 5 ) serves as a precatalyst for the high‐yielding photocatalytic production of COS from CO and S 8 under near‐ambient conditions (e.g., 10 psi, 25 °C). Further documented is the isolation and structural characterization of several key transition‐metal intermediates which collectively support a novel molybdenum(IV)‐based catalytic cycle as being operative. Finally, in the presence of an excess amount of a primary amine, it is demonstrated that this catalytic system can be successfully used for the “on‐demand” generation and utilization of COS as a chemical reagent for the synthesis of ureas.